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Valuation and Qualifying Accounts and Reserves (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Allowance for Doubtful Accounts |  |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |  |
Balance at beginning of year | $ 6.7 | $ 6.5 |  | $ 5.4
Additions charged (credited) to expense | 8.0 | 1.6 |  | 0.3
Deductions | (3.0) | (2.6) |  | (1.1)
Acquisitions | 0.0 | 1.3 |  | 2.2
Foreign exchange changes | (0.3) | (0.1) |  | (0.3)
Balance at end of year | 11.4 | 6.7 |  | 6.5
Allowance for Sales Discounts, Other Credits and Sales Returns |  |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |  |
Balance at beginning of year | 7.7 | 7.8 |  | 9.7
Additions charged (credited) to expense | 12.2 | 13.5 |  | 12.7
Deductions | (7.9) | (13.7) |  | (11.1)
Reclass to Other current liabilities(1) | 0.0 | 0.0 | [1] | (3.4)
Acquisitions | 0.0 | 0.0 |  | 0.3
Foreign exchange changes | 0.2 | 0.1 |  | (0.4)
Balance at end of year | 12.2 | 7.7 |  | 7.8
Allowance for Cash Discounts |  |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |  |
Balance at beginning of year | 2.0 | 1.7 |  | 3.0
Additions charged (credited) to expense | 19.7 | 22.2 |  | 19.6
Deductions | (19.9) | (21.8) |  | (21.3)
Acquisitions | 0.0 | 0.0 |  | 0.5
Foreign exchange changes | 0.1 | (0.1) |  | (0.1)
Balance at end of year | 1.9 | 2.0 |  | 1.7
Warranty Reserves |  |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |  |
Balance at beginning of year | 5.4 | 4.9 |  | 4.1
Additions charged (credited) to expense | 3.5 | 3.9 |  | 4.1
Deductions | (3.1) | (3.4) |  | (3.1)
Foreign exchange changes | 0.3 | 0.0 |  | (0.2)
Balance at end of year | 6.1 | 5.4 |  | 4.9
Income Tax Valuation Allowance |  |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |  |
Balance at beginning of year | 51.6 | 50.8 |  | 45.0
Additions charged (credited) to expense | 2.2 | 0.4 |  | 6.9
Foreign exchange changes | 1.6 | 0.4 |  | (1.1)
Balance at end of year | $ 55.4 | $ 51.6 |  | $ 50.8
[1] | (1) On January 1, 2018, the Company adopted accounting standard ASU 2014-09, Revenue from Contracts with Customers and all related amendments (Topic 606), applying the modified retrospective transition method to all customer contracts that were not completed as of January 1, 2018. As a result, the allowance for returns has been reclassified from "Accounts receivable, net" to "Other current liabilities." For more information, see "Note 2. Recent Accounting Pronouncements and Adopted Accounting Standards" to the consolidated financial statements contained in Part II, Item 8. of this report.

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- Definition Amount of increase (decrease) in valuation and qualifying accounts and reserves from adjustment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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